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Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table Procedure The unknown solutions are : HCI, N

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Answer #1

For the First Sample

Litmus Test Gives Red means It's an Acid

on Adding AgNO3it gives No PPT which means that

It is an Acid Which Does not make ppt with silver

there are two acids given

i) HCl it will give white ppt with silver nitrate to give silver chloride &

ii) Acetic acid which doesn't Give ppt with silver nitrate

So, Sample 1 is Acetic Acid

For the Second Sample

Litmus Test Gives Blue means It's a Base

on Adding AgNO3it gives White/Yellow PPT

here, there are two bases given

i) NaOH it will give Brown ppt with silver nitrate &

ii) Na2CO3 which will give Yellow ppt (Ag2CO3) with silver nitrate

So, Sample 2 is Na2CO3

For the Third Sample

Litmus Test Gives Blue means It's a Base

on Adding AgNO3it gives Brown PPT

here, there are two bases given

i) NaOH it will give Brown ppt (Silver hydroxide) with silver nitrate to give &

ii) Na2CO3 which will give Yellow ppt

So, Sample 3 is NaOH

For Four Sample

Litmus Test Gives Red means It's an Acid

on Adding AgNO3it gives White ppt

It is an Acid Which Does not make ppt with silver

there are two acids given

i) HCl it will give white ppt (AgCl) with silver nitrate to give silver chloride &

ii) Acetic acid which doesn't Give ppt with silver nitrate

So, Sample 4 is HCl

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